Water of Eespiration. 



425 



The results obtained in the fasting experiments here reported are given for 

 each day in table 218, the detailed determinations for the 2- and 3-hour periods 

 being given in the statistical tables for the different experiments. 



The figures in table 218 show that the variations between different days 

 with different subjects are very considerable, ranging from 518 grams on the 

 fourth day of experiment No. 71 to 1061 grams on the second day of experiment 

 No. 80. It is to be noted that these subjects were performing no muscular 

 work other than that incident to the ordinary habits of life inside the chamber. 



Considering all the experiments, the variations on the first day of the fast 

 range from 609 to 982 grams, the average being 753 grams. On the second 

 day of the fast, the range is from 618 to 1061 grams, the average for all the 

 experiments being a little more than that on the first day, namely, 774 grams. 

 The smaller number of experiments which lasted three or more days show a 

 range on the third day from 568 to 943 grams, the average being 701 grams. 

 As the fast progresses, the average amount of water of respiration and perspi- 

 ration per 24 hours gradually diminishes, but for the last 3 days of fast, as 

 here recorded, the amount is nearly constant. 



Considering the experiments with the same subject, the agreement between 

 Nos. 68 and 69 is fairly close, the second day of experiment No. 69 being an 

 exception. On this day there were 160 grams more water given off than on the 

 day preceding. 



The extended series of experiments with S. A. B. show that for the most part 

 on the first day without food, the amount of water was fairly constant, ranging 



